CO-Z 25L Portable Dairy Cow Milking Machine Milker Bucket Tank Barrel Stainless Steel (Silver) STAINLESS STEEL CONSTRUCTION: Stainless steel construction in polished finish, made to last with superb sturdiness and ultimate rusty-free performance HIGH PULSATION FREQUENCY FOR ULTIMATE MILKING EFFICIENCY: Pulsation frequency of the L80 pneumatic pulsator can reach 60-80 times per minute, maximizing your milking efficiency LIGHTWEIGHT WITH 25L MILK TANK: 25L (6.6 gallons) milk tank provides large volume for dairy work, the lightweight material makes it easy to transport and clean SUPERIOR QUALITY WITH FOOD-GRADE RUBBER: Food-grade rubber ring ensures perfect sealing and chemical-free using experience, safeguarding the health of you and your loved ones WIDE APPLICATIONS & UNIVERSAL COMPATIBILITY: perfect for dairy farms and milk product plants. Compatible with almost all kinds of vacuum pumps. Vacuum pump not included.